Post on 11-Oct-2015
description
HT
12 G
B 60
20
al
d
HT
12 G
B 6
060
new
sand
pape
r.com
SPECIALTY GRAPHITE MATERIALSFOR CONTINUOUS CASTING
CARBONE LORRAINEAn Expert at your Service.
ISO 14001ISO 9001: 2000
06126-3 volets HT12GB6060 6/09/07 9:30 Page 3
Cooling system
Graphite die
Solidification front
Horizontal continuous caster
is a metallurgical process which allows continuous control of the transformation from a liquid metal to a solid state in order to directly obtain semi-finished products like: wires, rods, tubes, strips, custom sections.
The graphite die used in this transformation, permits:
the shaping of the metal, the heat extraction necessary to transform the metal
from liquid to solid state.
Continuous casting
2
06126-3 volets HT12GB6060 6/09/07 9:30 Page 4
In addition to the graphite grade chosen, the castingresults are also a function of die design, quality ofmachining, and the specific characteristics of thecasting installation.Our grades have been developed in conjunctionwith foundrymen to obtain the proper blend of physical characteristics for continuous casting. We can provide technical services to assist you in finding a suitable graphite for your application.However, in many cases optimal grade selectioncan be made only through actual trials.
The following application chart should be used onlyas an indicative guide for grade selection.
depends mainly on the composition of the alloy to be cast: grey iron requires a graphite resistantto wear abrasion; brass, a graphite relatively densebut with enough open porosity to allow zinc toevaporate in the area of the solidification front; non-ferrous alloys containing elements like nickel orcobalt need high density graphite to reduce chemical attack of the graphite die...
The other parameters which determine the choice of the grade are:
the size and shape of the cast section, the speed of casting, the total amount of alloy to cast, casting orientation (i.e, vertical or horizontal).
RECOMMENDED GRADES
TYPThe selection of the best graphite grade for your application
RECOMMENDED GRADES
Cast alloy Wire casting Billet casting Strip casting Tube casting
Grey and ductile iron - 2020 - 2020
Brass (Cu-Zn) 2204, 2191 2191 2204, 2220 2191, 2220
Bronze 2191, 2204 2191 2204, 2230 2191, 2230 (Core)
Phosphorus bronze 2220, 2204 2191, 2220 2220, 2204 2191, 2220
Maillechort (Cu-Zn-Ni) Nickel-silver 2230, 2204 - 2230, 2204, 2333 2204, 2191
Nickel-copper 2230, 2204 - 2230, 2204 -
Red copper, Phosphorus deoxidized copper 2191 2191 - -
- Vertical casting 2220 -Aluminium 2191
Horizontal casting2191
Silver, Gold 2191 - 2191 2191
Precious metal alloys 2191, 2204 - 2191, 2204 2191, 2204
3
06126-3 volets HT12GB6060 6/09/07 9:30 Page 5
Data herein contained are provided for general information purpose only and are not binding. CARBONE LORRAINE shall have no liability whatsoeverwith respect to information contained herein. Duplication, reproduction or translation of any information contained herein, in whole or in part, isstrictly prohibited without prior written consent of CARBONE LORRAINE.
TYPICAL CHARACTERIST ICSTYPICAL CHARACTERIST ICS
Unit StandardASTM 2191 2020 2220 2204 2230
1.74
12
80 (L)
9
95 (L)
8
85 (H)
8
80 (L)
4
85 (H)
1.77 1.83 1.85 1.90
%
Rockwell C748
10.1 9.2 11.4 12.4 12.6
44 45 57 45 57
6,400 6,500 7,500 6,500 7,500
97 99 126 99 126
14,100 14,300 18,300 14,300 18,300
4.2 4.5 5.4 4.5 5.4
2.3 2.5 3.0 2.5 3.0
1,070 1,550 1,125 1,090 1,125
0.00042 0.00061 0.00045 0.00043 0.00045
116 81 112 119 112
67 47 65 69 65
15 15 13 13 13
0.0006 0.0006 0.0005 0.0005 0.0005
542 x 542 x 1,830 530 x 635 x 1,830 308 x 620 x 1,830 311 x 654 x 915 152 x 620 x 915
C559
C830
C695
C695
E228
C611
C767
-
-
C651
g/cm3
GPa
MPa
psi
MPa
psi
x 10-6
/C
/F
cm
in
W/mC
BTU-Ft/Ft2HrF
m
in
mm
in 21.3 x 21.3 x 72 20 x 24 x 72 12 x 24 x 72 12 x 25 x 36 6 x 24 x 36
Property
Density
Porosity
Hardness
Modulus
of elasticity
Flexural
strength
Compressive
strength
Coefcient of
thermal
expansion
Electrical
resistivity
Thermal
conductivity
Average
grain size
Standard
block size
4
06126-3 volets HT12GB6060 6/09/07 9:30 Page 6
Graphite is well adapted for use as continuous castingdies because of its unique physical characteristics:
Non-wetting to most metals due to its low reactivity
and low porosity. These characteristics can be tailored
to specific casting requirements through selective
processing.
High thermal conductivity.
Easy to machine and to polish.
Cum
ulat
ive
Pore
Vol
ume
(10-
2cm
3 /g)
Pore Radius (.m)0,1 1 10
0
5
10
15
2191
2204 2220
Typical values of thermal conductivityMaterial W/m. K
0 100 200 300 400 500
418 Silver
385 Copper
163 Tungsten
123 Molybdenum
100 Graphite for continuous casting
90 Nickel
75 Iron
42 Carbon
0.7 Brick
0.3 Lampblack
0.1 Firebrick
Thermal conductivity
W/m. K
110
80
0
2020
500 1,000 1,500 C
Melting and boiling points
Boiling point C
Melting point C
0 1,000 2,000 3,000 4,000 5,000 6,000
5,9003,370
3,650 Graphite3,700
2,620
2,8561,062
2,7401,535
2,6001,083
2,550 2,300
2,340232
2,300660
2,190960,5
Tungsten
Molybdenum
Gold
2,9001,455 Nickel
Iron
Copper
Boron2,355
1,410 Silicium
Tin
Aluminium
Silver
420 Zinc
2020
2230
22202204
2191
2230
Capable of withstanding molten metal temperatures.Graphite sublimates at 3,650C and atmosphericpressure.
Graphite manufacturing
907
app
5
06126-3 volets HT12GB6060 6/09/07 9:30 Page 1
HT
12 G
B 60
20
Carbone Lorraine harnesses prime expertise in industrial
applications to deliver innovative solutions involving graphite,
other high-performance materials, and key components for
electric motors and electronic equipment for many
high-technology markets.
As world number-one in its main business specialities,
Carbone Lorraine fields an extensive industrial and commercial
network covering around 40 countries, working hand in hand
with its clients to pursue permanent innovation through a
broad range of top-class products and services.
PARTNER IN INNOVATION
CUSTOMER-ORIENTED INTERNATIONAL NETWORK
HT
12 G
B 6
060
new
sand
pape
r.com
Main production sites
Industrial or commercial branch
www.carbonelorraine.com
CARBONE LORRAINE COMPOSANTS41 rue Jean-Jaurs - BP 148F-92231 GENNEVILLIERS - FRANCETel. : +33 (0)1 41 85 43 50Fax : +33 (0)1 41 85 45 11
Contact for EUROPE
ht.graphite@carbonelorraine.com
Contact for U.S.A.CARBONE OF AMERICA IND. CORP.Graphite Materials Division215 Stackpole StreetSt. Marys, PA 15857-1488Tel. : +1 814 781-1234Fax : +1 814 781-8570
IS
06126-3 volets HT12GB6060 6/09/07 9:30 Page 2